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Codechange #6729: mute bogus GCC 7 warning (#6733) 

We do a memset of (byte - byte), which strictly seen ranges from -254 .. 255, for which GCC warns.
But just before this memset is an if() which says the first byte has to be bigger than the second.
So this is a bogus warning.
This commit is contained in:
Patric Stout 2018-04-16 23:48:19 +02:00 committed by GitHub
parent a72117111e
commit 88be2413ce
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1 changed files with 3 additions and 3 deletions
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src/newgrf.cpp
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@ -1971,12 +1971,12 @@ static ChangeInfoResult StationChangeInfo(uint stid, int numinfo, int prop, Byte
if (length == 0 || number == 0) break;
if (length > statspec->lengths) {
byte diff_length = length - statspec->lengths;
statspec->platforms = ReallocT(statspec->platforms, length);
memset(statspec->platforms + statspec->lengths, 0, length - statspec->lengths);
memset(statspec->platforms + statspec->lengths, 0, diff_length);
statspec->layouts = ReallocT(statspec->layouts, length);
memset(statspec->layouts + statspec->lengths, 0,
(length - statspec->lengths) * sizeof(*statspec->layouts));
memset(statspec->layouts + statspec->lengths, 0, diff_length * sizeof(*statspec->layouts));
statspec->lengths = length;
}